Novel cylinder end face surfacing preheating device and using method

Abstract

The invention discloses a novel cylinder end face surfacing preheating device and a using method. The novel cylinder end face surfacing preheating device comprises a top arm and a bottom disc, wherein a rotating cylinder is fixedly arranged at the bottom end of the top arm, a connecting column is fixedly arranged at the output end of the rotating cylinder, a middle disc is fixedly arranged at the bottom end of the connecting column, a primary adjusting assembly is arranged on the outer side of the bottom disc and the outer side of the middle disc, a frame is rotatably arranged at the tail end of the primary adjusting assembly, combustion nozzles are fixedly clamped to the side, away from the primary adjusting assembly, of the frame, a protection cylinder is fixedly inserted into the middle of the bottom disc, and an electric lifting rod is fixedly arranged in the middle of the top end of the protection cylinder. According to the novel cylinder end face surfacing preheating device, the primary adjusting assembly is arranged so that the distance between the multiple sets of combustion nozzles and the center of the bottom disc can be flexibly changed, then the size of a round preheating area is flexibly changed; the novel cylinder end face surfacing preheating device adapts to preheating of surfacing of the end faces of cylinders of different sizes, the flexibility of the whole device is improved, and the preheating effect of surfacing of the end faces of the cylinders is improved.

Description

technical field [0001] The invention relates to the technical field of cylinder end surface surfacing welding, in particular to a novel cylinder end surface surfacing welding preheating device and its use method. Background technique [0002] Overlay welding is welding for increasing the size of iron processing weldment, restoring weldment or depositing metal with special properties on the surface. Overlay welding uses welding heat source to form a gap between the surface of the base material and the material to be welded. A surface engineering of fusion metallurgical bonding, its purpose is not to connect parts, but to deposit one or several layers of materials with desired properties on the parts by means of welding to obtain the required wear resistance, heat resistance, For the cladding layer with special properties such as corrosion resistance, in order to improve the performance of the end surface of the cylinder, surfacing welding is usually used to deposit materials ...

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Problems solved by technology

[0002] Overlay welding is welding for increasing the size of iron processing weldment, restoring weldment or depositing metal with special properties on the surface, overlay welding A surface engineering that uses welding heat sources to form a molten metallurgical bond between the surface of the base material and the material to be welded. Its purpose is not to connect parts, but to deposit one or more layers on the parts by means of welding. performance materials to obtain the required wear-resistant, heat-resistant, corrosion-resistant and other special properties of the cladding layer, in order to improve the performance of the end face of the cylinder, surfacing welding is usually used to deposit different performance materials on the end face of the cylinder. When surfacing the end face of the cylinder, in order to improve the efficiency of surfacing, it is necessary to preheat the end face of the cylinder; however, most of the existing preheating devices for surfacing the end of the cylinder use combustion pumps and multiple sets of combustion nozzles for combustion. The flame spraying method is used to preheat the surfacing welding of the end surface of the cylinder. However, most of the multiple sets of combustion nozzles are of fixed structure, and the size of the preheating area cannot be flexibly adjusted, so that it cannot adapt to the preheating of the surfacing welding of the cylinder end surface of different sizes. , which reduces the preheating effect of the device on the surfacing welding of the cylinder end

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